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RT61 Notes

From: "andrew cooke" <andrew@...>

Date: Sun, 24 May 2009 08:09:36 -0400 (CLT)

I am a tad disappointed with how hard it is to get a Linux wifi access
point working.

As far as I can tell, the rt61pci driver (one of the r2x00 serialmonkey
drivers) that comes with opensuse 11.1 does not support master mode.  It
will go into monitor mode, but you need to compile kismet-devel from git
to use it (the standard kismet - I can't remember whether it's in opensuse
or not - does not support rt61; the dev version does, although it's not
documented.  Use source=rt71,...).

The only place I have described with a complete description of how to use
rt61 as an access point is
http://ubuntuforums.org/archive/index.php/t-296822-p-2.html

The post by ep2011 half-way down that page indicates success using the old
drivers (this 2 years ago - why is this still not working in the
serialmonkey code?!).  I haven't tried this yet, so here's a copy of the
text in case that disappears:

---------------------

1.) Download the latest original Ralink RT61 drivers from:
$> wget
http://www.ralinktech.com/drivers/Linux/RT61_Linux_STA_Drv1.1.0.0.tar.gz

Note: I wrote the guide for 1.0.4.0, but it is no longer available for
download. However, it should work with the new driver as well. If it does,
please post that.
2.) Compile the Module
Install the kernel headers corresponding to your kernel (In most cases it
should be installed by default, but it seems there are derivates which
won't do that)
sudo apt-get install linux-headers-`uname -r`
^^ Did NOT need to do.

$> tar xvfz RT61_Linux_STA_Drv1.0.4.0.tar.gz
$> cd RT61_Linux_STA_Drv1.0.4.0/Module/
$> cp -f Makefile.6 Makefile
$> make all

3.) Get root
$> sudo su

4.) Prepare Config directory for the module
#> mkdir -p /etc/Wireless/RT61STA/
#> cp *.bin /etc/Wireless/RT61STA/
#> cp rt61sta.dat /etc/Wireless/RT61STA/

5.) Install Kernel Module
#> cp rt61.ko /lib/modules/`uname -r`/kernel/drivers/net/
#> depmod

6.) Configure module via rt61sta.dat (use binary edit mode)
#> vi -b /etc/Wireless/RT61STA/rt61sta.dat
ENTER FOLLOWING:

[Default]
NetworkType=Infra
AuthMode=SHARED
EncrypType=WEP
DefaultKeyID=1
Key1=<KEY>
SSID=<WIRELESS SSID>

7.) Remove broken preinstalled Module


8.) Load module rt61
#> modprobe rt61

Edit modprobe and network config files

Add broken module to blacklist:
#> echo 'blacklist rt61pci' >> /etc/modprobe.d/blacklist

Add the new module to module autostart
#> echo 'rt61' >> /etc/modules

and create an alias
#> echo 'alias ra0 rt61' >> /etc/modprobe.d/aliases

Create file named StartWifi.sh in /etc/init.d/
#!/bin/sh
sudo modprobe --remove rt61pci
sudo modprobe rt61
sudo iwpriv ra0 set NetworkType=Infra
sudo iwpriv ra0 set AuthMode=SHARED
sudo iwpriv ra0 set EncrypType=WEP
sudo iwpriv ra0 set DefaultKeyID=1
sudo iwpriv ra0 set Key1=<KEY>
sudo iwpriv ra0 set SSID=<WIRELESS SSID>
sudo dhclient ra0


Enter the following terminal commands

sudo chmod 0755 /etc/init.d/StartWifi.sh
sudo ln -s /etc/init.d/STartWifi.sh /etc/rc2.d/S90StartWifi.sh


Reboot - Try - Be Happy! :-D

Now, If you do a kernel update do the following:

copy rt61.ko from /lib/modules/(OLD KERNEL)/kernel/drivers/net to
/lib/modules/(NEW KERNEL)/kernel/drivers/net

then run the following terminal command:
sudo depmod

And that should be it!!!

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